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anastassius [24]
3 years ago
13

Solve for y 3x + 1/5y = 7

Mathematics
1 answer:
jarptica [38.1K]3 years ago
4 0
I think it is y=35 because u multiply both sides by 5 move the variable right then the final solution is
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A piece of wire is 8/9 meter long broke into two pieces. One piece is 2/3 meter long. How long is the other?
Genrish500 [490]

Answer:

<h2><em><u>2/9 is the answer.</u></em></h2>

Step-by-step explanation:

<em><u>1. First, make an equation.</u></em>

<em><u>Given:</u></em>

8/9 = length of wire

2/3 = length of a part of the wire

E = 8/9-2/3

<em><u>Unknown:</u></em>

Second part of wire

<em><u>2. Make the numbers have equal denominators</u></em>

2/3 * 3/3

= 6/9

<em><u>3. Solve</u></em>

8/9 - 6/9

= 2/9

Hope this helped,

Kavitha

3 0
3 years ago
Please help &lt; &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;33333333 TYY<br> -20 -8 + (-12)
Montano1993 [528]

Answer:

-30

Step-by-step explanation:

-20-8=-28

-28-12

=-30

5 0
2 years ago
Convert 2/5
netineya [11]
The answer is b) 40%
8 0
3 years ago
Read 2 more answers
Wayne used the diagram to compute the distance from Ferris, to Dunlap, to Butte. How much shorter is the distance directly from
OLEGan [10]

Answer:

10 mi

Step-by-step explanation:

In this question you have to use Pythagorus Theorem. a²+b²=c²

a = 15

b = 20

So, 15²+ 20² = c²

= 225 + 400 = 625

So Ferris to Butte is \sqrt{625} which is 25.

So now you would do 15 + 20 to find out Wayne's distance. 35 - 25 = 10.

Hope it made sense and I didn't waffle

7 0
2 years ago
Read 2 more answers
what is the surface area of a conical grain storage tank that has a height of 24 meters and a diameter of 16 meters? round the a
Sauron [17]
<span>The basis of this cone is a circle with a diameter d = 16m. This information is sufficient to calculate
1. The surface of the wheel . We use the formula

</span>A =  \pi  r^{2} 
<span>
2. </span><span>the radius of the wheel needed to the formula for calculating the area of ​​a circle and the cone

d = 16m
1/2d = r = 1/2*16m = 8m
..................................................................................................
Area base
</span>P =  \pi  r^{2} =  \pi  (8m)^{2} = 64 \pi  m^{2} 
<span>..................................................................................................
</span><span>The surface area
</span>
A =  \pi rl 
<span>l - creates a cone = ?

</span><span>Height , forming a cone and the radius of a circle formed triangle . Two known sides is possible to calculate the third side ( the cone ) of the Pythagorean Theorem
</span>
a = r = 8cm
b = h = 24m
c = l = ?

a² + b² = c²
r² + h²  = l²
l = √ (r² + h²) = √ [ ( 8m)² + ( 24m)² ] = √ (64m² + 576m²) = √ (640 m²)= √ (8*8*10m²) = 8√10m

<span>The lateral surface of the cone
A = </span>πrl = π*8m *8√10m = 64√10πm²

The total area of ​​the cone = <span>The base area of ​​the side surface of +

A = 64</span>√10πm² + 64πm² = 64πm² *(√10 + 1)


3 0
3 years ago
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